cfsindorf

48" deep would be a lot to cover for a single fixture. Without knowing what fixture you had in mind I would say that you could probably get away with it by putting any SPS directly under the light and putting any LPS or less light intensive frags further towards the outsides, but I would imagine that the outside edge of the tank may not be too usable as most light fixures can only cover 2' to 3' max of spread.

The shallowness of a frag tank is something you must consider as well, so you don't burn your frags. The lighting you have should probably be set up in an adjustable frame to raise it up or lower it closer to find what works best for your corals.

That's right I remember you said something about yo-yos. Hummmm that way when I wanted to mess in the system I could raise the lighting. Then during the rest of the time lower it for prime usage of the light.

One other idea would to be to put it on a track with a motor that moves it back and forth over the tank. One of my LFS's has a 6' frag tank setup like this and it's pretty awesome. I'm not sure the best way to do it, but I'm sure if you thought about it hard enough you could get pretty creative with it.

I would love to see pics or get info on motorized idea. Could be used for other ideas.

CFS

Here you go Craig: http://www.reefcentral.com/forums/sh...5&pagenumber=1